The court grants an environmental group's motion for partial summary judgment against Pennsylvania officials for failing to implement the state-enhanced vehicle inspection and maintenance (I/M) program in 16 counties by November 15, 1999, as required by the Pennsylvania state implementation plan (SI...

The court holds that the U.S. Forest Service policy of leaving game "baiting" regulation in the National Forest System to the states complies with the National Environmental Policy Act (NEPA) and the Endangered Species Act (ESA). The court first holds that the adoption of the new policy is not a maj...

The court upholds the U.S. Environmental Protection Agency's (EPA's) redesignation of five parcels of tribal land as a nonfederal Class I area under the Clean Air Act (CAA) prevention of significant deterioration (PSD) program. The court first holds that Arizona's chamber of commerce lacks standing ...

The court holds that trade associations' action for judicial review of a U.S. Environmental Protection Agency (EPA) rule permitting the use of "any credible evidence" to prove or disprove Clean Air Act (CAA) violations is not ripe for review. The heart of the associations' argument is that the credi...

The court holds that under the Clean Air Act (CAA), federal entities cannot remove to federal court state and local government actions to enforce air quality laws. A California air quality management district brought a suit against the United States in state court seeking civil penalties for a U.S. ...

The court holds that the Surface Mining Control and Reclamation Act (SMCRA) §1272(e) prohibits subsidence and underground mining activities that might lead to subsidence in parks and protected areas. The Secretary of the Interior interpreted §1272(e), which prohibits surface coal mining operations...

The court remands a municipality's request for litigation costs relating to its successful challenge of a U.S. Environmental Protection Agency (EPA) Clean Air Act (CAA) rule establishing new source performance standards for the combustion of municipal solid waste. The court first holds that the muni...

The court holds that various federal agencies violated the Endangered Species Act (ESA) and the National Environmental Policy Act (NEPA) in their preparations of biological assessments (BAs), biological opinions (BOs), and environmental impact statements (EIS) with respect to the survival of the Son...

A district court held that the FWS violated NEPA, but not the ESA, when it issued a special rule that specifies the protective mechanisms that apply to the polar bear as a result of its threatened status. In May 2008, the FWS listed the polar bear as threatened under the ESA. The Service then issued...

The Tenth Circuit, in a 120-page opinion, reversed a lower court decision setting aside and permanently enjoining the U.S. Forest Service's Roadless Area Conservation Rule. In setting aside the rule, the lower court held that the Service violated the Wilderness Act of 1964 and NEPA. But the Wilderne...